Mauna Loa Solar Observatory Observer's Log ----------------------------------------------------------------------------- Thu Sep 8 16:39:52 GMT 1994 Year: 94 Doy: 251 Observer: yasukawa WEATHER COMMENT: Thu Sep 8 16:40:11 GMT 1994 In broken cirrus and scattered altocumulus, cool, moderate south wind. Temp. = 46F. Thu Sep 8 16:48:00 GMT 1994: Patrol Start MKIII COMMENT: Thu Sep 8 16:59:06 GMT 1994 Having problems loading tape into Exabyte. Working on it. Cleaned headss. Thu Sep 8 17:00:58 GMT 1994: Calibration MKIII COMMENT: Thu Sep 8 17:05:03 GMT 1994 Was bad tape. Manually removed it and discarded, cycled Exabyte drive power, and loaded a new tape. Functioned OK. COMMENT: Thu Sep 8 17:23:14 GMT 1994 Dumping HISTORY plots, 1/2 rotations #18 and 19 (DOY 222-249) for Fisher data request. Thu Sep 8 18:01:01 GMT 1994: Calibration Thu Sep 8 18:30:07 GMT 1994: Patrol End DPMON COMMENT: Thu Sep 8 18:30:21 GMT 1994 I think aperture wheel crashed. Restarting after manual setup. Thu Sep 8 18:31:50 GMT 1994: Patrol Start WEATHER COMMENT: Thu Sep 8 18:33:56 GMT 1994 Relatively clear hole. Thu Sep 8 19:02:00 GMT 1994: Calibration DPMON COMMENT: Thu Sep 8 19:11:16 GMT 1994 Reconfigured to disc-preferred mode. Thu Sep 8 19:32:02 GMT 1994: Patrol End DPMON COMMENT: Thu Sep 8 19:33:03 GMT 1994 Restoring limb-preferred mode, during dome reconfiguration. Thu Sep 8 19:38:12 GMT 1994: Patrol Start MKIII COMMENT: Thu Sep 8 19:38:55 GMT 1994 Stopping mkiii MKIII COMMENT: Thu Sep 8 19:45:25 GMT 1994 There was a large smudge on O1 and a slight haze overall. Performed a temporary Alcopad cleaning of the front surface, lens tissue wipe, and brush-off. Restarting observations. MKIII COMMENT: Thu Sep 8 19:59:27 GMT 1994 Coronal scan is noisy at the same spot in the NW. Stopping tape and inspecting O1 again. MKIII COMMENT: Thu Sep 8 20:07:26 GMT 1994 Re-wiped frontsurface and brushed off. MKIII COMMENT: Thu Sep 8 20:13:41 GMT 1994 Polarization appearing at NW and SE nodes. Re-doing O1 to see if conditions change. MKIII COMMENT: Thu Sep 8 20:34:11 GMT 1994 Trying this. Ssome faint streaks hard to remove. Overall, lens looks good. MKIII COMMENT: Thu Sep 8 20:40:41 GMT 1994 Sky noisy but coronal scans look good this time. Noise patterns not retracing themselves like they were previously. Thu Sep 8 21:00:01 GMT 1994: Calibration MKIII COMMENT: Thu Sep 8 21:12:08 GMT 1994 VDIFF between before and after cleaning revealed some differences iin the NW quadrant. Did not do a VDIFF before cleaning so CME might be a small possibility. WEATHER COMMENT: Thu Sep 8 21:38:19 GMT 1994 In thin cirrus. Thu Sep 8 21:53:01 GMT 1994: Patrol End Thu Sep 8 22:01:09 GMT 1994: Patrol Start DPMON COMMENT: Thu Sep 8 22:01:11 GMT 1994 Changed occulting disc from 1931 to 1941 (larger). COMMENT: Thu Sep 8 22:13:56 GMT 1994 *************************************************************** Chu taking over obs from Yasukawa *************************************************************** WEATHER COMMENT: Thu Sep 8 22:48:33 GMT 1994 Scattered regions of cirrus now coming into FOV from West. Thu Sep 8 23:01:58 GMT 1994: Calibration Fri Sep 9 00:01:57 GMT 1994: Calibration WEATHER COMMENT: Fri Sep 9 00:44:22 GMT 1994 Orographic clouds rising up from West passing through FOV now. Cirrus still lingering above orographic clouds. Fri Sep 9 01:01:54 GMT 1994: Calibration COMMENT: Fri Sep 9 01:57:06 GMT 1994 Reconfigured the dome slot while instruments pointing towards a thick orographic cloud. Fri Sep 9 02:01:56 GMT 1994: Calibration Fri Sep 9 03:01:56 GMT 1994: Calibration COMMENT: Fri Sep 9 03:28:05 GMT 1994 No good coronal or dpmon limb images since before 00:00UT. Combination of cirrus and orographic clouds is the cause. PAU. Fri Sep 9 03:31:13 GMT 1994: Patrol End COMMENT: Fri Sep 9 03:31:33 GMT 1994 Activity Report: QP: 140; 223; 267; 290; 297. Possible Coronal Enhancement in NW at 21:12UT. Tapes: MKIII: H00836 DPMON: P00154 LOW-L: L00103 running in unit 0 Fri Sep 9 03:32:11 GMT 1994: Filemark SCAN-LOG SCAN-LOG 16:47:40. 9/8/94 DOY 251 17:14:51 17:18:05 17:21:20 17:24:32 17:27:48 17:31:02 17:34:15 17:37:28 17:40:41 17:43:53 17:47:06 17:50:18 17:53:30 17:56:42 17:59:55 18:03:06 18:06:17 18:09:28 18:12:39 18:15:49 18:19:00 18:22:09 18:25:19 18:28:29 18:31:40 18:34:51 18:38:03 18:41:13 18:44:24 18:47:33 1851 0 CL 18:54:22 1858 15CL 19:04:05 19:07:37 19:10:45 19:13:57 19:17:05 19:20:15 19:23:23 19:26:35 19:29:43 19:32:52 19:36:00 19:48:20 19:51:30 19:54:39 19:57:50 20:10:10 20:34:46 20:37:55 20:41:05 20:44:14 20:47:23 20:50:33 20:53:46 20:56:55 21:00:05 21:03:13 21:06:27 21:09:35 21:12:44 21:15:52 21:19:01 21:22:09 21:25:18 21:28:26 21:31:35 21:34:43 21:37:54 21:41:04 21:44:13 21:47:20 21:50:30 21:53:38 21:56:48 21:59:55 22:03:05 22:06:13 22:09:22 22:12:30 22:15:39 22:18:47 22:21:57 22:25:05 22:28:14 22:31:22 22:34:31 22:37:39 22:40:48 22:43:57 22:47:07 22:50:15 22:53:24 22:56:32 22:59:41 23:02:48 23:05:58 23:09:07 23:12:18 23:15:28 23:18:43 23:21:54 23:25:05 23:28:16 23:31:26 23:34:35 23:37:46 23:40:55 23:44:05 23:47:14 23:50:24 23:53:32 23:56:41 23:59:49 0:02:59 0:06:07 0:09:18 0:12:26 0:15:34 0:18:42 0:21:51 0:24:59 0:28:10 0:31:17 0:34:27 0:37:35 0:40:49 0:43:57 0:47:06 0:50:14 0:53:23 0:56:31 0:59:40 1:02:48 1:05:57 1:09:06 1:12:15 1:15:24 1:18:33 1:21:42 1:24:51 1:28:00 1:31:09 1:34:18 1:37:27 1:40:36 1:43:45 1:46:54 1:50:03 1:53:12 1:56:21 1:59:30 2:02:39 2:05:48 2:08:58 2:12:06 2:15:16 2:18:25 2:21:35 2:24:43 2:27:53 2:31:02 2:34:12 2:37:20 2:40:30 2:43:39 2:46:48 2:49:57 2:53:06 2:56:14 2:59:23 3:02:31 3:05:40 3:08:47 3:11:57 3:15:05 3:18:15 3:21:24 3:24:34 3:27:43 0 ERRORS OK